Someone in an older blue BMW opened fire in the 1200 block of N. Capitol St.

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Eleven people were injured in a drive-by shooting in the nation's capital early Monday.

Authorities said someone in an older blue BMW opened fire on a crowd of people outside an apartment building on N. Capitol Street in Washington, D.C., around 2 a.m.

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The majority of victims are being treated for shooting-related injuries, which include both gunshot wounds and grazes, said Metropolitan Police Chief Cathy Lanier.

The most serious injury was in a man who was shot in the back. All victims are expected to survive, NBC Washington TV station News4 reported.

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It's also possible some victims were injured by flying glass from a shattered bus shelter or by something else.

Police said the crime scheme was chaotic, and they are still investigating. Authorities had to wait until the sun rose to finish laying down evidence at least 46 markers to record where bullets and fragments landed in a crime scene that stretches nearly a block.